GE Industrial Solutions Power Break II Switches, 800-4000A Frames, 240-600Vac - Manual (Page 19)

Power Break® II Switches
Chapter 3. Accessory Operation
3–6 Shunt Trip with Lockout
The Shunt Trip with Lockout module, shown in Figure
16, allows the switch to be opened electrically from a
remote location and prevents the switch from closing
while the accessory is energized.
Figure 16. Shunt Trip with Lockout module.
If the switch is equipped with a Power+™ Control Unit, it
is configured so that only ground fault trips will activate a
Bell Alarm–Alarm Only or Bell Alarm with Lockout.
The catalog numbers for the Shunt Trip for various
voltage applications are listed in Table 12. For installation
instructions see GEH–6284 or GEH–6519.
Catalog
Number
Voltage
Rating
Peak Inrush
Current, A
Nominal RMS
Current, mA
11
SPSTL012 12 Vdc 19 300
SPSTL024
24 Vac
24 Vdc
15 300
SPSTL048
48 Vac
48 Vdc
7.5 200
SPSTL120
120 Vac
125 Vdc
3.0 80
SPSTL208 208 Vac 1.9 60
SPSTL240
240 Vac
250 Vdc
1.5 45
SPSTL480 480 Vac 0.75 20
SPSTL600 600 Vac 0.60 16
24–600 Vac devices are rated for 50/60 Hz.
Peak inrush current is present for 2–6 ms after activation. This number is
provided so that fuses and supplies can be chosen appropriately.
Ratings for 480 Vac and 600 Vac devices are at the input of the upstream
transformer, included with the accessory and specified in GEH–6519,
which powers the device. For voltage and current ratings at the switch
terminal block, see SPSTL120.
Table 12. Catalog numbers and voltages for the Shunt Trip
with Lockout.
Operation
Apply control voltages to terminals 31 and 32 of the
terminal strip on the right side of the switch to open the
switch. The Shunt Trip with Lockout will cause the switch
to open when the control voltage is greater than 75% of
the dc-rated value or 55% of the ac-rated value.
3-7 Undervoltage Release
The Undervoltage Release (UVR) module, shown in
Figure 17, opens the switch when the input control voltage
drops to 35–60% of its rated value and prevents an open
switch from closing until the input control voltage is
greater than 80% of the rated value.
If the switch is equipped with a Power+™ Control Unit, it
is configured so that only ground fault trips will activate a
Bell Alarm–Alarm Only or Bell Alarm with Lockout.
Figure 17. Undervoltage Release module.
The catalog numbers for the UVR for various voltage
applications are listed in Table 13. For installation
instructions see GEH-6285 or GEH–6520.
Operation
Apply control voltage to terminals 29 and 30 of the
terminal strip on the right side of the switch. When the
applied control voltage is above 80% of the UVR’s rated
value, the switch can be closed. When the voltage drops to
35–60% of the rated value, the UVR will open the switch.